127 
ned, passim creberrim? striatd ; varicibus tribus, subalatis, in spi- 
nis compressis laciniatis ; spind ad angulum anfractuum elongata, 
subrectd ; interstitiis nodo unico ; aperturd elongata, ovali; labro 
intis levi; canali mediocri, rectiusculo, clauso, ad basin subre- 
curvo. Axis 16 lin. 
Hab. West coast of Veragua ; on a sandy floor in fifty-two fathoms. 
This species has the general character of M. pinniger and M. ca- 
pensis, and is very closely allied to the latter. 
Morex Festivus. Mur. testd fusiformi, crassa, fulvd, trivaricosd ; 
varicibus simplicibus, recurvis, supern? cristatis, subtilissimé cre- 
niferis ; interstitiis nodulosis, lineis subgeminis transversis fuscis 
eleganter ornatis ; aperturd ovali ; labro inits sparsim denticulato ; 
canali valdé clauso, ad basin subrecurvo. Axis 13 lin. 
Hab. Bay of Madalena, California; dredged from seven fathoms, 
on a sandy floor. 
Morex roveonatus. Mur. testd fusiformi, crassd, multivaricosd, 
transversim creberrime sulcaid, laminis minimis longitudinalibus 
Ffoveolatd atro-purpureo pallide bifasciaid ; varicibus septenis sim- 
plicibus, postice rotundatis, antice margine acutd ; aperturd ovali, 
coarctatd ; labro intits obtuse denticulato ; labio interno producto ; 
canali aperto, subrecurvo. Axis 125 lin. 
Hab, Bay of Madalena, California; with the preceding. 
Morex ananas. Mur. testd Susiformi, ventricosd, crassd, multi- 
varicosd ; anfractibus septenis superné subplanulatis, transversim 
costatis, costis alternate minoribus; varicibus senis rotundatis 
spiniferis, spird supremd precipue mazimd, brevi, rectd, solidd, 
biplicatd, transversim compressd, ceteris brevissimis subequali- 
bus; aperturd rosed, rotundatd, seu paulisper elongate ovali, postic® 
canaliculatd ; canali mediocri, subobliquo, aperto, margine columel- 
lari rugulosd, dorso bifariam spinoso, serie supremd superante. 
Hab. West coast of Africa. Mus. Cuming. 
A shell closely resembling M. rosarium in its size and proportions, 
but finds its specific distinction in its greater massiveness, the superior 
size of its upper series of spines, and the absence of nodules on the 
interstitial ribs. Both shells have a distinct fasciation of three dark 
bands, but our species is entirely wanting in that beautiful and ele- 
gant covering of striz which is so conspicuous in the fine specimen 
of M. rosarium in Mr. Cuming’s collection. 
Murex Betcueri. Mur. testd magnd, fusiformi, crassd, ponderosd, 
pallidé fused, multivaricosd ; anfractibus quadratis, albo fascia- 
tis ; varicibus numerosis, foliaciis simplicibus, superneé elongatis, 
Sornicatis, etate valde erosis ; aperturd quadratd, pallidé carned ; 
labro intis levi, inferne dente magno, crasso, obtuso; canali tor- 
tuoso, aperto, ad sinistram inclinato ; umbilico precipue magno. 
Axis 66 lin. 
Hab? San Diego, California. From a bank of mud near the head 
of the harbour. 
